DEM-DAI1753/54/55 EVMPCM1753/PCM1754/PCM1755 Evaluation Module

User's Guide

Literature Number: SLEU104March 2009

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Contents

Preface ............................................................................................................................... 5

1 Description ................................................................................................................ 71.1 Functional Block Diagram .................................................................................................. 81.2 EVM Features ................................................................................................................ 81.3 Hardware Description ....................................................................................................... 8

1.3.1 Power Supplies ..................................................................................................... 81.3.2 Analog Output ....................................................................................................... 91.3.3 Digital Audio Interface.............................................................................................. 91.3.4 DIP-Switch Configuration......................................................................................... 101.3.5 Connector to PC Parallel Port / Host ........................................................................... 101.3.6 Operation Controls for PCM1754 ............................................................................... 10

1.4 Electrostatic Discharge Warning ......................................................................................... 10

2 Demonstration Software ............................................................................................ 112.1 Installation ................................................................................................................... 122.2 Using the Demo Software ................................................................................................. 122.3 Hold and Pass .............................................................................................................. 13

2.3.1 Attenuation Window............................................................................................... 132.3.2 Operational Control Window ..................................................................................... 142.3.3 Function Control Window......................................................................................... 15

3 Schematic, PCB Layout, and Bill of Materials ............................................................... 173.1 DEM-DAI/DAC Schematics ............................................................................................... 183.2 DEM-PCM1753/54/55 Schematic ........................................................................................ 213.3 Printed Circuit Board Layout—DEM-DAI/DAC ......................................................................... 223.4 Printed Circuit Board Layout—DEM-PCM1753/54/55 Daughtercard................................................ 253.5 Component Lists ........................................................................................................... 28

3.5.1 Bill of Materials for DEM-DAI/DAC.............................................................................. 283.5.2 Bill of Materials for DEM-PCM1753/54/55 ..................................................................... 29

Important Notices ............................................................................................................... 30

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www.ti.com

List of Figures1-1 DEM-DAI1753/54/55 EVM Functional Block Diagram .................................................................. 82-1 Startup Window............................................................................................................. 122-2 Attenuation Window........................................................................................................ 132-3 Operational Control Window .............................................................................................. 142-4 Function Control Window.................................................................................................. 153-1 Low-Pass Filter Schematic................................................................................................ 183-2 Daughtercard Sockets, Connector, and Regulator Schematic ....................................................... 193-3 Digital Audio Interface Schematic ........................................................................................ 203-4 DEM-PCM1753/54/55 Daughtercard Schematic....................................................................... 213-5 DEM-DAI/DAC Board Layout—Silkscreen .............................................................................. 223-6 DEM-DAI/DAC Board Layout—Top (Component) Side ............................................................... 233-7 DEM-DAI/DAC Board Layout—Bottom View ........................................................................... 243-8 DEM-PCM1753/54/55 Board Layout—Silkscreen ..................................................................... 253-9 DEM-PCM1753/54/55 Board Layout—Top (Component) Side ...................................................... 263-10 DEM-PCM1753/54/55 Board Layout—Bottom View................................................................... 27

List of Tables1-1 Digital Audio Receiver Configuration...................................................................................... 91-2 JP001 Jumper Configuration ............................................................................................... 91-3 Digital Audio Source Selection ........................................................................................... 103-1 Bill of Materials—DEM-DAI/DAC......................................................................................... 283-2 Bill of Materials—DEM-PCM1753/54/55 ................................................................................ 29

4 List of Figures SLEU104–March 2009Submit Documentation Feedback

PrefaceSLEU104–March 2009

Read This First

About This ManualThe DEM-DAI1753/54/55 EVM is a complete evaluation platform for the PCM1753/PCM1754/PCM1755series of 24-bit, 192-kHz stereo audio digital-to-analog converters (DACs). This user's guide provides theinformation needed to set up and operate the DEM-DAI1753/54/55 EVM, a test platform for theeight-channel, 24-bit PCM1753, PCM1754, and PCM1755 audio DACs. For a more detailed description ofthe PCM1753/54/55 product line, refer to the product data sheet available from the Texas Instrumentsweb site at http://www.ti.com. Support documents are listed in the section of this guide entitled RelatedDocumentation from Texas Instruments.

How to Use This ManualThroughout this document, the abbreviation EVM and the term evaluation module are synonymous withthe DEM-DAI1753/54/55 EVM.

Chapter 1 discusses the block diagram and primary features of the DEM-DAI1753/54/55 EVM. Thischapter also provides general information regarding the default switch and jumper configurations.

Chapter 2 explains how to use the software provided with the DEM-DAI1753/54/55 EVM.

Chapter 3 includes the EVM electrical schematics, printed circuit board (PCB) layout, and the bills ofmaterials.

Information About Cautions and WarningsThis document contains caution statements.

CAUTIONThis is an example of a caution statement. A caution statement describes asituation that could potentially damage your software or equipment.

The information in a caution or a warning is provided for your protection. Please read each caution andwarning carefully.

Microsoft, Windows are registered trademarks of Microsoft Corporation.I2S is a trademark of NXP Semiconductor.TOSLINK is a registered trademark of Toshiba Corporation.All other trademarks are the property of their respective owners.

SLEU104–March 2009 Read This First 5Submit Documentation Feedback

Related Documentation From Texas Instruments www.ti.com

Related Documentation From Texas InstrumentsThe following document provides information regarding Texas Instruments integrated circuits used in theassembly of the DEM-DAI1753/54/55 EVM. These documents are available from the TI web site. The lastcharacter of the literature number corresponds to the document revision that is current at the time of thewriting of this document. Newer revisions may be available from the TI web site at http://www.ti.com/ orcall the Texas Instruments Literature Response Center at (800) 477–8924 or the Product InformationCenter at (972) 644–5580. When ordering, identify the document(s) by both title and literature number.

Data Sheet Literature NumberPCM1753/PCM1754/PCM1755 SLES092

Product data sheet

If You Need AssistanceIf you have questions regarding either the use of this evaluation module or the information contained in theaccompanying documentation, please contact the Texas Instruments Product Information Center at (972)644–5580 or visit the TI web site at www.ti.com.

FCC WarningThis equipment is intended for use in a laboratory test environment only. It generates, uses, and canradiate radio frequency energy and has not been tested for compliance with the limits of computingdevices pursuant to subpart J of part 15 of FCC rules, which are designed to provide reasonableprotection against radio frequency interference. Operation of this equipment in other environments maycause interference with radio communications, in which case the user at his own expense is required totake whatever measures may be required to correct this interference.

TrademarksAll trademarks are the property of their respective owners.

6 Read This First SLEU104–March 2009Submit Documentation Feedback

Chapter 1SLEU104–March 2009

Description

The DEM-DAI1753/54/55 EVM is an evaluation board for the PCM1753/PCM1754/PCM1755, a 24-bit,192-kHz, enhanced multi-level, Delta-Sigma (ΔΣ) audio DAC. This EVM provides all necessary connectorsand circuitry for interfacing to audio test systems and commercial audio equipment.

Topic .................................................................................................. Page

1.1 Functional Block Diagram............................................................ 81.2 EVM Features ............................................................................. 81.3 Hardware Description.................................................................. 81.4 Electrostatic Discharge Warning................................................. 10

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1.1 Functional Block Diagram

M2, M1, M0

GND

SW006

Format Control

GND GNDMDORSTMDIMCML VDD

VCC

AVCC-

VCC AVCC+

3.3-V

Reg.

Second-

order

LPF

OPA2134

L/R

CHPCM1753

PCM1754

PCM1755

SCKI

BCK

CLKO

LRCK

DATA

Jumper

SW001 to

SW003

L-channel

R-channel

External I/F

(CN004)

DAI

(BUS)

Select

Digital

Audio

ReceiverCoax

OPT

DEM-DAI1753/1754/1755EVM

1.2 EVM Features

1.3 Hardware Description

1.3.1 Power Supplies

Functional Block Diagram www.ti.com

Figure 1-1 illustrates the functional block diagram of the DEM-DAI1753/54/55 EVM.

Figure 1-1. DEM-DAI1753/54/55 EVM Functional Block Diagram

The DEM-DAI1753/54/55 EVM offers the following features:• Complete evaluation platform for the PCM1753/54/55 stereo audio DAC• Onboard low-pass filters for the left and right channels• Easy configuration using onboard switches and jumpers• 96-kHz digital audio receiver accepts S/PDIF and optical inputs• Centronics connector for interfacing to a PC parallel port (required for the demonstration software)• Power-supply requirements: 5 V, 15 V, and –15 V• CD-ROM containing demonstration software for programming the PCM1753/1755 internal registers

(requires a PC running Microsoft® Windows®), a copy of this user's guide, and a PCM1753/54/55product data sheet

If any of these items are missing or damaged, please contact your local Texas Instruments representative.

The DEM-DAI1753/54/55 evaluation fixture requires three power supplies for operating thePCM1753/54/55, the digital support circuitry, and the low-pass filter operational amplifier (op amp).Standard banana jacks are provided for all power-supply connections.

Connector CN054 provides the 5-V supply required for VCC. It is used to power the PCM1753/54/55 aswell as the digital audio receiver (U002) and associated logic (U003 and U004).

8 Description SLEU104–March 2009Submit Documentation Feedback

1.3.2 Analog Output

1.3.3 Digital Audio Interface

www.ti.com Hardware Description

Connectors CN051 (AVCC+) and CN (AVCC–) are used to power the OPA2134 dual op amp (U101) thatperforms the DAC output low-pass filter function. AVCC+ can be set from 5 V to 18 V, while AVCC– can beset from –5 V to –18 V.

Ground connections are made at connectors CN052 and CN055. Both are connected to the ground planeof the DEM-DAI1753/54/55 board.

The left and right audio outputs are available at RCA jacks CN104 and CN105, respectively. The outputsare taken from the low-pass filter, which has a gain of 2. The low-pass filter can be configured for one oftwo cutoff frequencies: 54 kHz or 108 kHz. Typically, the 54-kHz cutoff frequency is used for allmeasurements.• For f–3 dB = 54 kHz, jumpers JP101 through JP106 must all be installed.• For f–3 dB = 108 kHz, jumpers JP101 through JP106 must all be removed.

A digital audio receiver (U002) is provided for easy connection to S/PDIF and optical signal sources,including audio test systems (Audio Precision and Rhode and Schwarz) and commercial audio equipment(CD and DVD players). The receiver can operate at rates up to 96 kHz with 24-bit audio data.

Switches SW001 through SW003 are used to set the receiver output data format, as shown in Table 1-1.Table 1-2 shows the jumper configuration for JP001 for normal operation.

Table 1-1. Digital Audio Receiver ConfigurationSW001 SW002 SW003 Receiver Output Data Format

L L L 16-bit to 24-bit, Left-Justified FormatL H L 16-bit to 24-bit, I2S™ FormatH L H 16-bit, Right-Justified (or standard)L H H 18-bit, Right-Justified (or standard)

Table 1-2. JP001 Jumper Configuration (1)

16-bit, Right-Justified 16-bit to 24-bit, I2S 16-bit to 24-bit,JP001 Jumper Format Format Left-Justified Format

CLKO X X XSCLK O O OGND O O OBCK O O N/C

BCK (left-justified) N/C N/C N/CLRCK O O ODATA O O O

(1) O = Install jumper, N/C = Remove jumper, X = Do not care

Switch SW004 is a momentary-contact pushbutton switch that is normally open. It is used to reset thedigital audio receiver when necessary.

The demonstration board also supports direct interfacing to audio decoders and signal processors viaconnector CN004 (unpopulated). SCLK, BCK, LRCK, and DATA are available and buffered by U005. Inaddition, 5 V (VCC) and ground are available at CN004. Switch SW005 is used to select between thedigital audio receiver and connector CN004 as the source of the audio interface. Table 1-3 shows theavailable switch settings.

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1.3.4 DIP-Switch Configuration

1.3.5 Connector to PC Parallel Port / Host

1.3.6 Operation Controls for PCM1754

1.4 Electrostatic Discharge Warning

Electrostatic Discharge Warning www.ti.com

Table 1-3. Digital Audio Source SelectionSW005 Setting Source Selection

INT Digital audio receiver (U002)EXT Connector CN004 via buffer U005

Switch SW006 is not used for the PCM1753/54/55. It is included for future products that may becompatible with this demonstration board. All switch elements must be set to the OFF position for thePCM1753/54/55.

The evaluation fixture includes a Centronics connector, CN003, that is used to connect to a PC parallelport or an alternative host controller. This connector is used to access the serial control port of thePCM1753/1755. The serial control port is used to program the PCM1753/1755 internal registers. Astandard printer cable is used to connect CN003 of the evaluation fixture to a PC parallel port. The portsignals are buffered using U006.

SW001 to SW003 on the daughtercard are the operating controls for the PCM1754. These switches mustbe in position 2 (NC) for the PCM1753/1755.• SW001: De-emphasis control (fS = 44.1 kHz)

– 1 (High) = De-emphasis ON– 3 (Low) = De-emphasis OFF

• SW002: Mute control– 1 (High) = Mute ON– 3 (Low) = Mute OFF

• SW003: Data format select– 1 (High) = 16-bit, Right-justified format– 3 (Low) = 16- to 24-bit, I2S format

Many of the components on the DEM-DAI1753/54/55 EVM are susceptible to damage by electrostaticdischarge (ESD). Customers are advised to observe proper ESD handling precautions when unpackingand handling the EVM, including the use of a grounded wrist strap at an approved ESD workstation.

CAUTIONFailure to observe ESD handling procedures may result in damage to EVMcomponents.

Description10 SLEU104–March 2009Submit Documentation Feedback

Chapter 2SLEU104–March 2009

Demonstration Software

Software is provided with the DEM-DAI1753/55 to allow programming of the PCM1753/55 internalregisters. The software operates on computers equipped running Microsoft Windows. The demo softwarerequires that the PC printer port be connected to CN003 of the DEM-DAI/DAC using a standard printercable.

Topic .................................................................................................. Page

2.1 Installation ............................................................................... 122.2 Using the Demo Software........................................................... 122.3 Hold and Pass .......................................................................... 13

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2.1 Installation

2.2 Using the Demo Software

Installation www.ti.com

The demo software is available for download at the TI web site (slac237.zip) as a compressed file. Thereis a single folder in the file, named Dem1741-42-48. This folder contains the application and all supportfiles.

To install the software on your computer, first create a new folder on your hard drive with an appropriatename (for example, DEM1753_55, PCM1753_55, etc.). Then open the Dem1741-42-48 folder in theinstallation download file, and copy all of the files in it to the new folder that you created on your hard disk.

Open the configuration setting file named DEM1748.ini with a text editor, such as Notepad or WordPad.When the file is opened, find the following line:

PCMIFADR = &h378

The &h378 indicates the printer port address that the demo software will use to communicate with theDEM-DAI1753/55. This address must be set to &h378, &h278, or &h3BC. Most PCs use &H378 as thedefault printer port address. If your printer port is not located at &h378, edit the address to match yourcomputer port address.

Double-click on the application file named dem1741-42-48_rev10.exe. A startup window will appear onyour screen, as shown in Figure 2-1. There are two menus near the top of the window, named Executeand Window.

Figure 2-1. Startup Window

The Execute menu includes three selections: Initialize, Reset, and Exit. Selecting Initialize instructs theprogram to write all of the PCM1753/55 internal registers with the default values. Selecting Reset instructsthe program to rewrite the PCM1753/55 internal registers with the data currently selected in theapplication windows. Selecting Exit closes the application.

The Window menu includes three selections: Attenuation, Operational Control, and Function Control. Thefollowing sections provide an explanation of each window.

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2.3 Hold and Pass

2.3.1 Attenuation Window

www.ti.com Hold and Pass

Each window has a button near the top, labeled either HOLD or PASS. Toggle the setting by clicking onthis button. When set to HOLD, the user can change the settings in a window, but the changes will not bewritten to the register(s) until the OK button (which appears at the bottom left corner of the window) ispressed. When set to PASS, changes made within a window are immediately written to the correspondingregister(s).

The Attenuation window (shown in Figure 2-2) sets the digital attenuation registers internal to thePCM1753/55. There is an attenuator for both the left and right output channels; each attenuator has itsown independent register to control its level. In the Attenuation window, there is a slider for eachattenuator register. Use the slider handle or the arrows at each end of the slider to adjust the attenuationlevel. The left and right arrow keys on the keyboard can also be used to adjust the level. Immediatelybelow each slider is a status display showing the current register setting (in decimals) and thecorresponding attenuation level in decibels (dB).

Figure 2-2. Attenuation Window

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2.3.2 Operational Control WindowHold and Pass www.ti.com

The Operational Control window is shown in Figure 2-3. This window is used to set parameters for thefollowing functions:• Soft Mute (Mute Lch, Mute Rch): On or off• DAC operation (DAC Lch, DAC Rch): On or off• Digital De-Emphasis (DEM): Off, 32 kHz, 44.1 kHz, or 48 kHz

For more information regarding these functions, refer to the PCM1753/55 data sheet.

Figure 2-3. Operational Control Window

Demonstration Software14 SLEU104–March 2009Submit Documentation Feedback

2.3.3 Function Control Windowwww.ti.com Hold and Pass

The Function Control window is shown in Figure 2-4. This window is used to set parameters for thefollowing functions:• Audio Data Format (Format)• Digital Filter Low-Pass Response (Roll-Off): Sharp or Slow• Zero Flag Output: Active high or active low• Output Phase: Normal or Inverted• L/R Zero Flag: Independent or Common• Oversampling Rate: 64/32 fS or 128/64 fSFor more information regarding these functions, refer to the PCM1753/55 data sheet.

Figure 2-4. Function Control Window

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Demonstration Software16 SLEU104–March 2009Submit Documentation Feedback

Chapter 3SLEU104–March 2009

Schematic, PCB Layout, and Bill of Materials

This chapter provides the electrical and physical layout information for the DEM-DAI/DAC and theDEM-DAI1753/54/55. The bill of materials (BOM) is included for component and manufacturer reference.

Note: Board layouts are not to scale. These are intended to show how the board is laid out; theyare not intended to be used for manufacturing DEM-DAI1753/54/55 EVM PCBs.

Topic .................................................................................................. Page

3.1 DEM-DAI/DAC Schematics ......................................................... 183.2 DEM-PCM1753/54/55 Schematic .................................................. 213.3 Printed Circuit Board Layout—DEM-DAI/DAC ............................... 223.4 Printed Circuit Board Layout—DEM-PCM1753/54/55 Daughtercard . 253.5 Component Lists....................................................................... 28

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3.1 DEM-DAI/DAC Schematics

DEM-DAI/DAC Schematics www.ti.com

The schematic for the sections of the DEM-DAI/DAC is shown in Figure 3-1 through Figure 3-3.

Figure 3-1. Low-Pass Filter Schematic

18 Schematic, PCB Layout, and Bill of Materials SLEU104–March 2009Submit Documentation Feedback

www.ti.com DEM-DAI/DAC Schematics

Figure 3-2. Daughtercard Sockets, Connector, and Regulator Schematic

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DEM-DAI/DAC Schematics www.ti.com

Figure 3-3. Digital Audio Interface Schematic

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3.2 DEM-PCM1753/54/55 Schematicwww.ti.com DEM-PCM1753/54/55 Schematic

Figure 3-4 illustrates the schematic for the DEM-PCM1753/54/55.

Figure 3-4. DEM-PCM1753/54/55 Daughtercard Schematic

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3.3 Printed Circuit Board Layout—DEM-DAI/DACPrinted Circuit Board Layout—DEM-DAI/DAC www.ti.com

Figure 3-5 through Figure 3-7 illustrate the printed circuit board (PCB) layout for the DEM-DAI/DAC.

Figure 3-5. DEM-DAI/DAC Board Layout—Silkscreen

22 Schematic, PCB Layout, and Bill of Materials SLEU104–March 2009Submit Documentation Feedback

www.ti.com Printed Circuit Board Layout—DEM-DAI/DAC

Figure 3-6. DEM-DAI/DAC Board Layout—Top (Component) Side

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Printed Circuit Board Layout—DEM-DAI/DAC www.ti.com

Figure 3-7. DEM-DAI/DAC Board Layout—Bottom View

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3.4 Printed Circuit Board Layout—DEM-PCM1753/54/55 Daughtercard

www.ti.com Printed Circuit Board Layout—DEM-PCM1753/54/55 Daughtercard

Figure 3-8 through Figure 3-10 illustrate the PCB layout for the DEM-PCM1753/54/55.

Figure 3-8. DEM-PCM1753/54/55 Board Layout—Silkscreen

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Printed Circuit Board Layout—DEM-PCM1753/54/55 Daughtercard www.ti.com

Figure 3-9. DEM-PCM1753/54/55 Board Layout—Top (Component) Side

Schematic, PCB Layout, and Bill of Materials26 SLEU104–March 2009Submit Documentation Feedback

www.ti.com Printed Circuit Board Layout—DEM-PCM1753/54/55 Daughtercard

Figure 3-10. DEM-PCM1753/54/55 Board Layout—Bottom View

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3.5 Component Lists

3.5.1 Bill of Materials for DEM-DAI/DAC

Component Lists www.ti.com

Table 3-1 lists the bill of materials for the DEM-DAI/DAC.

Table 3-1. Bill of Materials—DEM-DAI/DACQty Ref Des Item Value Mfr Part No. Manufacturer2 C001,C002 Poly film capacitors 0.01 µF AMFF0050J103 NISSEI4 C004, C006, C008, Poly film capacitors 0.1 µF AMFF0050J104 NISSEI

(C016), C0511 C009 Poly film capacitors 0.068 µF AMFF0050J683 NISSEI5 C010, C011, C013, Chip monolithic ceramic capacitor 0.1 µF RPE132F104Z50 Mmurata

C014, C0555 C003, C005, C007, Aluminum electrolytic capacitor 10 µF/16V ROA-16V100M ELNA

C111, C1123 (C015), C052, Aluminum electrolytic capacitor 100 µF/16V ROA-16V101M ELNA

C053, C0542 C101, C102 Aluminum electrolytic capacitor 10 µF/16V R3A-16V100M ELNA4 C103, C104, C105, Polypropylene capacitor 1200 pF APSF0100J122 NISSEI

C1064 C107, C108, C109, Polypropylene capacitor 120 pF APSF0100J121 NISSEI

C1101 C012 Aluminum electrolytic capacitor 10 µF/16V SME16VB10M Nichicemi1 C056 Tantalum capacitor 10 µF/16V DN1C100M1S NEC1 CN003 L- type ribbon connector 57LE40360- DDK

7700(D3)3 CN002, CN057, 2-pin connector 1 pin × 2 FFC-2BMEP1 HONDA TSUSHIN

CN103 row KOGYO CO LTD1 CN105 RCA connector (red) Red LPR6520-0802 SMK1 CN104 RCA connector (white) White LPR6520-0803 SMK1 CN001 RCA connector (yellow) Yellow LPR6520-0804 SMK1 CN051 RCA connector (orange) Yellow T-45 (Yellow) SATO PARTS1 CN052 RCA connector (green) Green T-45 (Green) SATO PARTS1 CN053 Banana jack (blue) Blue T-45 (Blue) SATO PARTS1 CN054 Banana jack (red) Red T-45 (Red) SATO PARTS1 CN055 Banana jack (black) Black T-45 (Black) SATO PARTS1 CN056 VH connector 2-pin B2P-VH JST2 CN101, CN102 Connector, 20-pin XB-3-7-20 MAC81 D001 Diode 1SS133 ROHM1 JP001 14-pin connector 7 pin × 2 FFC-14BMEP1 HONDA TSUSHIN

row KOGYO CO LTD6 JP101–JP106 2-pin connector 1 pin × 2 FFC-2BMEP1 HONDA TSUSHIN

row KOGYO CO LTD1 R001 Metal Film Resistors, 1/4W 75 Ω SN14C2C-75ΩF KOA2 R107, R108 Metal Film Resistors, 1/4W 100 Ω SN14C2C-100ΩF KOA2 R002, R004 Metal Film Resistors, 1/4W 470 Ω SN14C2C-470F KOA2 R103, R104 Metal Film Resistors, 1/4W 1 kΩ SN14C2C-1kΩF KOA2 R101, R102 Metal Film Resistors, 1/4W 8.2 kΩ SN14C2C-8.2kΩF KOA2 R105, R106 Metal Film Resistors, 1/4W 15 kΩ SN14C2C-15kΩF KOA1 R003 Metal Film Resistors, 1/4W 47 kΩ SN14C2C-47kΩF KOA1 RA001 Resistor array 47 kΩ × 5 M6-1-473J BI1 U001 TOSLINK® optical connector TORX179P Toshiba

28 Schematic, PCB Layout, and Bill of Materials SLEU104–March 2009Submit Documentation Feedback

3.5.2 Bill of Materials for DEM-PCM1753/54/55

www.ti.com Component Lists

Table 3-1. Bill of Materials—DEM-DAI/DAC (continued)Qty Ref Des Item Value Mfr Part No. Manufacturer1 U002 Digital Audio I/F Receiver IC CS8414-CS Cirrus Logic1 U003 General-purpose Logic IC TC74VHC14F Toshiba1 U004 General-purpose Logic IC TC74HCT32AF Toshiba2 U005, U006 General-purpose Logic IC TC74VHC244F Toshiba1 U051 Regulator IC REG1117-3.3 Texas Instruments1 U101 IC socket DIP-8 pin 100-008-000 3M3 SW001, SW002, Toggle Switch (1-pole DT) FT1D-2M Fujisoku

SW0031 SW004 Puch Switch FP1F-2M Fujisoku1 SW005 Toggle Switch (2-pole DT) FT2D-2M Fujisoku1 SW006 DIP Switch, 4-element A6D-4103 OMRON4 — spacer AR-325B HIROSUGI

Table 3-2 lists the bill of materials for the DEM-PCM1753/54/55.

Table 3-2. Bill of Materials—DEM-PCM1753/54/55Qty RefDes Description Size Mfr Part Number MFR

4 C001–C004 Aluminum capacitor 10 µF/16 V R3A-16V100M ELNA2 C005, C006 Ceramic capacitor 0.1 µF (2125) GRM40B104K50PT/ Murata

GRM21BB11H104KA01L

3 SW001–SW003 Toggle switch (2-pole DT) G-12AP NKK1 U001 IC SSOP, 16-pin PCM1753DBQ Honda1 U001 IC SSOP, 16-pin PCM1754DBQ Texas

Instruments1 (U001) IC SSOP, 16-pin PCM1755DBQ Texas

Instruments

SLEU104–March 2009 Schematic, PCB Layout, and Bill of Materials 29Submit Documentation Feedback

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